Power receiving equipment and Ethernet power supply system

A powered device, Ethernet technology, applied in the direction of electrical components, circuit devices, data switching current sources, etc., can solve the problems of repeated opening, unable to load circuit power supply, etc., to achieve hot swap, save power consumption, and simplify the structure Effect

Active Publication Date: 2021-02-09
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This application provides a powered device and a power over Ethernet system, which can solve the problem in the related art that the PSE may be turned on and off repeatedly when charging the input capacitor of the voltage converter, and cannot normally supply power to the load circuit. The technical solution is as follows:

Method used

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  • Power receiving equipment and Ethernet power supply system
  • Power receiving equipment and Ethernet power supply system
  • Power receiving equipment and Ethernet power supply system

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Embodiment Construction

[0050] The power receiving device and the Ethernet power supply system provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0051] figure 1 It is a schematic structural diagram of a power-over-Ethernet system provided by an embodiment of the present invention, such as figure 1 As shown, the power over Ethernet system may include PSE 01 and PD 02 . The PSE 01 may be a network device such as a switch, a router, a firewall or a hub. The PD 02 may be an Internet Protocol (Internet Protocol, IP) telephone, a wireless local area network access point, a micro base station, or a network camera. refer to figure 1 , both the PSE 01 and the PD 02 can be provided with multiple Ethernet interfaces, and each Ethernet interface of the PSE 01 can be connected to an Ethernet interface of the PD 02 through an Ethernet twisted pair. While PSE 01 transmits data signals to PD 02 through the Ethernet twisted pair, it...

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PUM

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Abstract

The invention provides a powered device and a power over Ethernet system, and belongs to the technical field of Ethernet power supplying. The powered device comprises a plurality of powered controllers, a plurality of switching circuits, a slow starting circuit, a voltage converter and a load circuit, wherein each switching circuit is connected with one corresponding powered controller, and can keep a turn-off state during the handshake stage of the powered controller and power souring equipment, so that the connection between the powered controller and the load circuit can be cut off, influence of the load current of the load circuit to the normal power-on of the powered controller is avoided, the normal power-on of the powered controller can be ensured, and hot plugging of the powered controller is realized. In addition, the slow starting circuit is further arranged in the powered device, and the slow starting circuit has a slow starting function, so that it is ensured that an inputcapacitor of the voltage converter can be charged slowly and the load circuit can be electrified successfully. The powered device provided by the embodiment of the invention has relatively high flexibility and reliability during working.

Description

technical field [0001] The present application relates to the technical field of power over Ethernet, in particular to a powered device and a power over Ethernet system. Background technique [0002] A power over Ethernet (POE) system generally includes a power sourcing equipment (PSE) and a powered device (PD). Both the PSE and the PD are provided with Ethernet interfaces, and the Ethernet interfaces of the two can be connected through an Ethernet twisted pair. While transmitting data signals to the PD through the Ethernet twisted pair, the PSE can also provide DC power to the PD. [0003] In the related art, a PD generally includes a power receiving controller (also referred to as a PD chip), a voltage converter and a load circuit. Wherein, the power receiving controller is respectively connected with the Ethernet interface of the PD and the voltage converter. The voltage converter is connected to the load circuit. Before the PSE supplies power to the PD, it needs to g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J1/00H04L12/10
CPCH02J1/00H04L12/10
Inventor 余少敏唐雪锋蔡定辉
Owner HUAWEI TECH CO LTD
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